Matthew Garbet contributes a guest column to the SaportaReport wherein he debunks the "Tipping Point Theory of Transit"—that cities should continue to support cars until a complete transit system is realized.

Cities designed for one type of mobility - the car - result in residents impaired by multiple types of ailments. To create a happier and healthier city, the solution is to facilitate many ways of getting around, especially alternatives to the auto.

New Yorkers can expect to live eight years longer than they could just 20 years ago. Do Mayor Bloomberg's policies and initiatives deserve some credit? A mounting body of evidence ties urban form to human health.